/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jasper.compiler;

public class TldLocation {

	private String entryName;
	private JarResource jar;

	public TldLocation(String entryName) {
		this(entryName, (JarResource) null);
	}

	public TldLocation(String entryName, String resourceUrl) {
		this(entryName, getJarResource(resourceUrl));
	}

	public TldLocation(String entryName, JarResource jarResource) {
		if (entryName == null) {
			throw new IllegalArgumentException("Tld name is required");
		}
		this.entryName = entryName;
		this.jar = jarResource;
	}

	private static JarResource getJarResource(String resourceUrl) {
		return (resourceUrl != null) ? new JarURLResource(resourceUrl) : null;
	}

	/**
	 * @return The name of the tag library.
	 */
	public String getName() {
		return entryName;
	}

	/**
	 * @return The jar resource the tag library is contained in.
	 * Might return null if the tag library is not contained in jar resource.
	 */
	public JarResource getJarResource() {
		return jar;
	}
}
